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Walter R. Kellogg


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Mineral Specimen #5373    Calcite on Bicolor Fluorite with Included Chalcopyrite and Cast after Barite

Hardin Co., Illinois

Ex. A. Neely, Wrapped in Hardin County Independent newspapers from 1963

Crude, off white colored Calcite crystals on cubic Fluorite which is a pale yellow color with a thin outer zone which is light blue in color. There are small Chalcopyrite crystals included in the Fluorite. The Fluorite has a good luster. There is a concave, striated cast after Barite. Perhaps not the most beautiful specimen, but a good reference specimen for the Fluorite mines of Illinois in the 1960s.

Condition: Fairly Good

Flaws: The terminations of some of the Calcite crystals are cleaved and incomplete. There are some internal cleaves in the Fluorite and a few chips on the edges and corners.

8.1 x 6.8 x 5.3 cm


This mineral is also found in the following galleries: Minerals From the United States | Calcite | Fluorite | Sulfides and Sulfosalts | Pseudomorphs | Minerals with Inclusions | Minerals Priced Between 25 and 49 Dollars